Two men have been taken to hospital after a “disturbance” in Broughty Ferry.
Police cordoned off several roads in the Brown Street area just after 6pm on Sunday.
The exact circumstances are unclear and officers have refused to comment on speculation about people being attacked with a weapon.
There are also no reports of any arrests.
In an update on Monday morning, a Police Scotland spokesperson said: “Around 6.15pm on Sunday we were called to a report of a disturbance on Brown Street, Broughty Ferry.
“Officers attended and two men, aged 20 and 25, were taken by ambulance to hospital.
“Inquiries are ongoing to establish the full circumstances.”
The nature of the men’s injuries has not been confirmed.
Police put tape across the entrances to several roads, near the doctors’ surgery, as they carried out an investigation.
Locals ‘startled’ at Broughty Ferry incident
One passer-by told The Courier it was a surprise to see the police presence.
He said: “Broughty Ferry is usually bustling in the summer, even at night time, so to see two of the main streets – Brown Street and Long Lane – taped off from all sides and deserted was quite startling.
“There were officers stationed at both ends of Brown Street and another at Long Lane, right next to the exit of the M&S car park.
“But there were also quite a number of others in the area, which is just round the corner from Broughty Ferry police office on Brook Street.
“I don’t know what they were looking for, but I could see one officer carrying out search duties in the garden of a property just outside of the cordon zone – and there were also what I presumed to be CID officers in Brown Street, who were in plain clothes.
“There were also quite a number of police cars and vans about in the area too.
“Whatever has happened, it is obvious that the police are taking it extremely seriously.
“Given the yards and yards of police tape, no-one was under any illusion that they were messing about.
“It is pretty scary to see something like that in such a nice place. I just hope no one has come to harm.”
Officers had left the scene by Monday morning.